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Question

Which of the following properties of copper are utilised in the household electrical wiring?

A
Electrical conductivity
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B
Thermal conductivity
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C
Malleability
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D
Ductility
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Solution

The correct option is D Ductility
To be used in electrical wiring, a metal should be ductile and a good conductor of electricity. Copper metal possesses both these properties, and thus, is widely used in household wiring.
It is also a good thermal conductor and is malleable, but these properties are not applicable for electrical wiring.

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